Home / 139,051,353.69-191,891,078.28-75,471,715.65

Finding the Fourth Proportional to 139,051,353.69, 191,891,078.28 and 75,471,715.65

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Solution

The fourth proportional to 139,051,353.69, 191,891,078.28 and 75,471,715.65 is: 104,151,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,051,353.69 : 191,891,078.28 = 75,471,715.65 : x
  2. Step 2: Convert to fraction form
    139,051,353.69/191,891,078.28 = 75,471,715.65/x
  3. Step 3: Cross multiply
    139,051,353.69x = 191,891,078.28 × 75,471,715.65
  4. Step 4: Simplify right side
    139,051,353.69x = 14,482,348,895,720,052
  5. Step 5: Solve for x
    x = 14,482,348,895,720,052/139,051,353.69
  6. Step 6: Final answer
    x = 104,151,081.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.